How To Make Facebook Account secure ??

To view and adjust your privacy settings:

1. Click  in the upper-right corner of any Facebook page
2. Select Privacy Settings from the dropdown menu
3. Click on a setting (ex: Who can see your future posts?) to edit it, or use the left column to view your other settings

You can also quickly view and adjust some of the most widely used privacy settings and tools from your  Privacy Shortcuts at the top right of any Facebook page.

To control the privacy for posts, photos and other stuff you share on your timeline, you can choose your audience when you post.